EWSR1 and neoplasm: In the forthcoming fifth edition of the WHO Classification of Tumours of Soft Tissue and Bone, it has been proposed to subclassify Ewing and Ewing-like sarcoma into four categories inclusive of genetic translocation: Ewing sarcoma, EWSR1 round cell sarcoma with non-ETS partners, CIC sarcomas, and BCOR sarcomas.